@0
MOV UP DOWN

@1


@2


@3
   MOV -1 DOWN
   SUB RIGHT
G: MOV LAST DOWN
   ADD 1
   JLZ G
   MOV DOWN RIGHT
   MOV RIGHT ACC
R: MOV ACC ANY
   MOV DOWN ACC
   JEZ R
   JGZ R

@4
   MOV 8 LEFT
E: MOV LEFT NIL
   MOV LAST LEFT
S: MOV ANY ACC
   MOV UP LEFT
   JEZ E
   MOV LEFT ACC
   MOV ACC LEFT
   MOV ACC DOWN
   JMP S

@5


@6


@7
MOV UP DOWN

@8